Finding the Fourth Proportional to 615,709.14, 849,670.52 and 343,781.68
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Solution
The fourth proportional to 615,709.14, 849,670.52 and 343,781.68 is: 474,414.20
Step by Step Solution
- Step 1: Write the proportion equation
615,709.14 : 849,670.52 = 343,781.68 : x - Step 2: Convert to fraction form
615,709.14/849,670.52 = 343,781.68/x - Step 3: Cross multiply
615,709.14x = 849,670.52 × 343,781.68 - Step 4: Simplify right side
615,709.14x = 292,101,158,812.07 - Step 5: Solve for x
x = 292,101,158,812.07/615,709.14 - Step 6: Final answer
x = 474,414.20
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.